Stapling-machine.



1. W. NASMITH.

STAPLING MACHINE.

APPLICATION FILED AUG-2| 1910.

Patented July 25, 1916.

HIE Nomwm rsrsns no. Puom-Lnna NAsmNtmn. o. c.

JOHN WILLIAM NASMI'lI-I, OF HEATONIVIERSEY, ENGLAND.

STAPLING-IVIACHINE.

Specification of Letters Patent.

Patented July 25, 1916.

Application filed August 2, 1910. Serial No. 575,132.

To all whom itmag concern Be it known that I, JOHN WILLIAM NA- SMITH, of Heaton Mersey, in the county of Lancaster, England, have invented certain new and useful Improvements in Stapling- Machines, of which the following is a specification.

My invention relates to machines employed to out, form, and drive the staples which fasten in the ends of wire-bound boxes, the said boxes being composed of sheets and cleats united by binding wires.

In early machines the staple was driven from the outside of the box through the cleats and into the sheets forming the ends of the boxes and in such machines the staple forming and driving devices could be united at the outer end of the upper jaw while inside the box the end of the lower jaw contained only the anvil for the purpose of turning the ends of the staples and preventing them from protruding into the box. It has been proved by practice to be much better to drive the staple from inside the box through the sheet and into the cleat; this method assuring a stronger box because the comparatively thin sheets are engaged by the bend of the staples while the thicker cleats receive the shanks of the same. As the staples must be driven into the center of the cleat close to the side and bottom of the box, the space for mechanism is limited and in the attempts to operate in this way the staple cutting and forming device has been separated from the driving device, the staples being formed at one end of the machine and then passed by complicated and expensive mechanism to a driving device situated in the extreme point of the lower jaw of the machine, the said jaw being made narrow and pointed to reach the corner of the box. Such an arrangement has many disadvantages in practice.

The termfjaw is used above because in machines as heretofore constructed it has been customary to so refer to the two members one of which carries the staple applying devices and the other of which carries the anvil mechanism. In the following description however the staple applying mem her will be simply referred to as the operating member instead of a jaw.

In machines of this kind it has been proposed to arrange suitable forming and driving mechanisms on the end of a single aw or operative member adapted to be lnserted that the latter has to be twisted in order to drive staples near the corners of the boxes.

According to this invention two or more jaws or operating members are arranged a suitable distance apart, preferably with parallel outer faces each carrying a guiding bar, and inner faces each carrying known staple forming and driving mechanisms so ar ranged that the staples are driven as close as possible to the outer guiding bars, that is to say, as far as possible out of the center line between the jaws or operating members. When a box is in position on the operating member for driving a staple into the material near a corner of a box the nose of said 'member should fit fairly closely into the said corner; this might prevent the wire for the staple from being fed sufliciently far past the shear, so, to allow room for a sufiicient length of wire to be fed forward, the stapling mechanism is inclined relatively to the walls of the box, the increased space between the wall and adjacent stapling mechanism caused by their divergence being sufficient for the object in view.

These and other features will now be described with reference to the accompanying drawings in which one construction of stapling machine according to this invention is shown by way of example.

In these drawings, Figure 1 is a plan of the lower operating member, which goes inside the box; Fig. 2 is an elevation of the inner face of one of the arms, and its plate, and the mechanism supported thereby; and Fig. 3 is a diagrammatic view showing the ends of the staples in relation to the ends and sides of the plates.

B is a portion of the bottom of the box,

0, c are cleats, ande is a portion of an end sheet; the staples 3 are driven from the inside of the box through the end sheets and into the cleats. The operating member in cludes two arms 1, each having an extension or plate 2 to support the mechanism presently described, said arms and supporting plates being fixed a considerable distance apart on a main frame (not shown) so as to form a broad square-nosed end a. Since minimum width. On the inner cheek of each plate 2 a staple cutting,'forming, and driving device is mounted. This device is of the usual kind and is therefore only shown in outline at d; it is soarranged that the exit for the staples 3 is close to each corner 4, 5 (Figs. 1 and 3) of the end a and instead of driving the staples normally to the face of the material the driversare 1nclined slightly to enable a long staple to be obtained. 1

The machine is provided with two treadles and clutches, and two anvils (or one broad one) in the endof the upper member (not shown) so that the operator may drive the staples along one side of the box by operating say the stapling device that drives staples at 4, and he may drive the staples along the bottom of the box by operating simultaneously both stapling devices and then drive those along the other side of the box by using the other stapling device at the corner 5. It is obvious that in using both stapling devices in crossing the bottom of the box this part of the work is done twice as quickly as formerly, thus increasing the productive capacity of the machineby driving two staples at one stroke. 'Another advantage is that the box is more stable and is supported better by resting on the broad square-nosed end of the lower operating member than when resting on a pointed end of very small area.

The wire may be fed and the cutting, forming, and driving devices may be operated in any suitable way. In the construc tion shown the following mechanism is employed: Rods 6, 7 are reciprocated from eccentrics set in motion by clutches operated from treadles in the usual way; they are connected to the double armed levers 8, 9 pivoting on the cross shaft 8. To one arm is fastened the toothed sector 10, which operates the shear, former, and driver in the usual way. The staple wires 11, 12 pass over milled disks 13, 14 and are nipped between these and smaller disks 13 mounted above on eccentric studs in the usual way. The staple wires 11, 12 pass over milled disks 13, 14: and are nipped between these and smaller disks 13 mounted above on eccentric studs in the usual way. Fixed on the same studs as the milled disks 18, 14 are ratchet wheels 15, 16 operated by pawls 17, 18 pivoted on studs carried'by levers 19, 20, which, in turn, pivot freely on the stud carrying the'ratchet wheels. The pawls 17 18 may be pressed into engage ment with their ratchet wheels 15, 16 by leaf springs. The levers 19, 20 are connected by links 30 to levers 21, 22 freely pivoted at their ends 31 and each carrying a and toward the end of this return stroke their horizontal arms come against the bowls on thebrackets 23, 2d and raise the levers 21 and 22. This raising of the levers 21 and 22 If.

turns the feed disks and feeds the wire ready for the next staples. The downward movement of the levers'21 and 22 about their pivots 31 may be caused entirely by their own weight and the weight of the contact "1 members 23 and'24, or springs may be provided to assist this downward movement.

Although the drawingsshow two arms 1, each having a plate 2 it will be obvious that in some cases more than two may be em-' ployed in the case of machines working wide boxes exclusively; and that, if desired, the operating member may be above, the box being turned over and the staples driven downward from the inside of the box. f

- Vhat I claim is o 1. In a stapling machine the combination of a main frame; a plurality of outwardly projecting arms mounted some distance apart upon the frame and with their outer lateral faces approximately parallel; and staple forming and driving mechanisms mounted upon the inner faces of the said arms, said mechanisms being independent of each other for individual operation, and the extremities of the arms with their-stapling mechanisms being adapted to be introduced into the inside of a box'to drive the staples outward. r

2. In a stapling machine the combination 1- of a main frame; a plurality of outwardlyprojecting arms mounted some distance apart upon the frame; and staple forming and driving mechanisms mounted upon the inner faces of the said arms, said mecha-;-

nisms being independent of each otherfor individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside of a box to drive the staples outward." 1

3. In a stapling machine the combination of a main frame; a plurality of outwardlyprO ecting arms mounted some distance ,apart on the said frame; mechanisms for cutting, forming and driving staples, thesaid mechanisms being situated between the outwardly-projecting arms and adjacent to the outer extremities thereof; and means for feeding wire for the staples to the said cutting mechanisms, thecutting, forming, anddriving mechanism of each member being independent for individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside of a box to drive the staples outward.

4. In a stapling machine the combination of a main frame; a plurality of outwardlyprojecting arms mounted some distance apart on the said frame; mechanisms for cutting, forming, and driving the staples, the said mechanisms being fixed in an inclined position between the outwardly-projecting arms and adjacent to the outer extremities thereof; and means for feeding wire for the staples to the said cutting mechanisms, the cutting, forming and driving mechanism of each member being independent for individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside of a box to drive the staples outward.

5. In a stapling machine the combination of a mainframe; a plurality of outwardlyprojecting arms mounted some distance apart on the said frame; mechanisms for cutting, forming, and driving staples, each of the said mechanisms being mounted on the inner face of one of the outwardly-projecting arms and adjacent to the outer extremities thereof; and means for feeding wire to each of the said cutting mechanisms, the cutting, forming and driving mechanism of each arm being independent for individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside of a box to drive the staples outward.

6. In a stapling machine the combination of a main frame; a plurality of outwardlyprojecting arms of equal length and mounted upon the frame with their outer lateral faces parallel to each other; mechanisms for cutting, forming, and driving staples, the said mechanisms being situated between the outwardly-projecting arms and adjacent to the outer extremities thereof; and means for feeding wire for the staples to the said cutting mechanisms, the cutting, forming and driving mechanism of each arm being independent for individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside 'of a box to drive the staples outward.

7 In a stapling machine the combination of a main frame; a plurality of outwardlyprojecting arms of equal length and mounted upon the frame with their outer lateral faces parallel to each other; mechanisms for cutting,'forming, and driving the staples, the said mechanisms being fixed in an inclined position between the outwardly-projecting arms and adjacent to the outer extremities thereof, and means for feeding wire for the staples to the said cutting mechanisms, the cutting, forming and driving mechanism of each arm being independent for individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside of a box to drive the staples outward.

8. In a stapling machine the combination of a main frame; a plurality of outwardlyprojecting arms of equal length and mounted upon the frame with their outer lateral faces parallel to each other; mechanisms for cutting, forming, and driving staples, each of the said mechanisms being mounted on the inner face of one of the outwardly-projecting arms and adjacent to the outer extremity thereof; and means for feeding wire to each of the said cutting mechanisms, the cutting, forming and driving mechanism of each arm being independent for individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside of a box to drive the staples outward.

9. In a stapling machine the combination of a main frame; a pair of arms of equal length extending outwardly from the frame in a horizontal direction, the said arms having their outer lateral faces parallel and being situated some distance apart upon the frame; two sets of mechanismsfor cutting, forming, and driving staples, one of the said sets being mounted upon the inner face of one arm while the other set is mounted on the inner face of the other arm, the two sets of cutting, forming, and driving mechanisms being independent for individual operation, and the extremities of the arms with their stapling mechanisms being adapted to be introduced into the inside of a box to drive the staples outward; and means for feeding wire to the two sets of cutting mechanisms.

In testimony whereof I have afiixed my signature, in presence of two witnesses.

JOHN WILLIAM NASMITI-I.

IVitnesses:

FRANK NASMITH, FRANCIS 7M. BARRACLOUGI-I.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

